Casement-window adjuster



1. H. SHAW. CASEIIIENT WINDOW ADJUSTER. APPLICATION FILED JUNE I, I920.

1 AQQQ l Patented Aug. 22, 1922?.

JOHN H. SHAW, OF NEW HAVEN, CONNECTICUT, ASSIGNORTO SARGENT & COMPANY,

OF NEW HAVEN, CONNECTICUT, A CORPIOBIATION OF CONNECTICUT.

GASEMENT-WINIJOW Anni-scene.

Specification of Letters Iatent.

Patented Aug. 22. less.

Application filed June 1,1920. Serial in. 385,675;

T 0 all whom it may concern Be it known that 1, JOHN H. Srraw, a citizen of theUnited States,and residing in'New Haven, county of New Haven, State of Connecticut, have invented certain new= and 'useful Improvements 1n Casement- Window Adjusters, of which the following is a full, clear, and exact description.

My invention relates to window adjusters I and, more particularly, to that type of devices by. whicha casement window may be held inv any adjusted open position that is desired. i

One object of my invention 1s to provide an adjuster for casement windows. which,

when the window is opened to any desired position, will automatically hold the window in this position.

A'nfother object of my invention is to pro duce a device which will retain ajcase-ment window in any desired position and yet allow it to be moved from this position,

when a positive force is applied to move it,

without the tightening and loosening of screws or other fastening devices.

To these and other ends .the "invention consists in the novel features and combinations of parts to be hereinafter descrlbed and claimed.

r In the accompanying drawings:

Fig. 1: is a view in elevation of a case- 'ment window to which my invention has been applied;

:zFig. v2 is a plansectlonal YlGW'Of'bht-B same; Y 1

Fig. 3 is a view similar to Flg. 2 on a larger scale, but showing the window in closed'position; I

Fig. 4 is a view similar toFig. 3 showing the window in open position;

Fig; 5"is sectional view on Fig. 6-is a detail sectional view of the friction adjusting means;

.- Fig. 7 is asectional vlew on line 77 of :Fig. 6;

. Fig. Sis a detailview of the tapered plug which forms an important feature ofmy invention. T

, While-I have illustrated my invention as appliedto a casement window, it will be understood that it is capable of use in other relations and is not to be limited to the exact form shown.

.I have-shown at 10, in the drawings, a

line 5 5 or casement window of usual form hinged to the frame 11 to swing outward about a-ver- 'tlcal axis. The improved adjuster, referred to generally by the numeral 12, is pivoted to the wlndow and frame on the vertical pivot p ns 13 and 14, respectively. T-he adjuster is thus mounted to swing about its pivots when the window is opened or closed.

My adjuster'12 consists of two telescoppin 13 on the windowlO, and the inner tube 16 flattened at its free end 18,-and' perforated to receive the pin 14. One of the'pivot pins, 14c, asshown in the 'dr'awings,is not provlded with a head so'that the 'tube '16 may be freely detached from the window :casmg I Considering the operation of the-parts thus far described, it will'be'apparent that] as the window is moved from open to closed position, or vice versa, the adjuster 12 will be extended and contracted longitudinally,

the outer tube 15 sliding freelyover the in-' ner tube 16. This action must, ofcou'rse, result from the fact that the pivot 14: is not coincident with the window hinge. It will be seen, then, that if'some means is provided to prevent or to render difficult,- relative longitudinal movement of the parts 15 and 16,the window may be yieldably or adjust ably held in the desired position- This is done in the following niannerJ- v v v The enclosed end of the' tube 16 is pro vided with longitudinal slits 19 and is; internally threaded at 20. A tapered or conically shaped plug 21,'threaded at 22, is provided and. is" of such a 'size'that "when' the tube16 is-threaded on this plug for only a few turns, the tube and plug will slide free ly in the cooperating tube 15. However, due -to the taper of the plug, if the tube'is threadedfarther on the plug, the slitted .end' of the tube will be caused toexpand circuinferentiallyz and to frictionally ,enk;

gage the sides of tube'15 vsothat'relative longitudinal movement of the two. tubes will be rendered difficult. The amount'of' friction and, consequently, the amount of force necessary to open the window or move one tube relatively to the other may be ad.-

justedto any desired degree, by turningtheplug one way or the other in the tube 16:;

In order to provide a convenient adjustmerit ofthe plug and to render the use of tools unnecessary for this purpose, the plug is provided with a polygonal or flattened end 23 and the flattened end of the tube 15 ,is shaped at 241 to receive this fiat end 28 with its mounting is secured on the frame 11. The tube 16, with plug 21 threaded a short distance therein, is inserted in the tube 15 to such an extent that the plug 21 is in the positionshown in Fig. 6. The'tubc 16' is then turned until the desired frictional engagement between the two tubes is obtained and is then withdrawn far enough to allow the perforation in the end 18 to slip over the pin 1d. The window may then be opened or closed to any desired position by being grasped and suflicient force'a'pplied and when released will ordinarily be frictionally held in the adjusted position. If, due to Wear, the tubes telescope too freely, a new adjustment may be made by merely slipping the end 18 from off the pin 14 and after pushing the plug up to the position shown in Fig. 6, giving the tube 16 a fraction of. a turn.

Due to the'fact that the expansion of the inner tube to a slight extent will cause the parts to bind, it only requires a fraction of aturnon the plug 21, to expand the inner tube from a size which will slide freely within the outer tube to a size whiclrwill bind tightly therein to hold the parts against accidental or unintentional movement.

It will be apparent that my invention capable of many modifications and of varioususes,*which lie within the spirit of the invention and within the scope of the appended claims.-

It is evident that the member 16 might be provided with a threaded tapered end and the plug 21, provided with an expansible ho'llowend to receive the tapered end .What I claim is: U

1'. An extensible member comprising an outer tube member, an inner member, one end of which projects from said tube member, having its opposite end threaded, a plug within said tube member and correspondingly threaded to engage said second menibcr, and cooperating-means on said tube and plug to hold the same against relative rotation.

In a device of the class described, a tube member, a threaded plugrotatingly contained within said memberand cooperating means on said plug. and the interior of said tube to hold said plug against rotation relativeto said tube. p

3. In a device of the class described: a tube member, a threaded plug rotat-ingly contained within said member, one end of said tube and the adjacent end-of said plug being shaped to hold said plug. against m tation in said tube.

4'. In a device of the class described, a tubemember and a plug slidably contained; therein,said plug being rotatable in said tube member along some portions of thelength thereof, and means'at other portions a second member freely slidable into said tube member, and-means for yieldably' holding said members against relative move ment, said means becoming operative when said second member is rotated in said tube member.

6; An extensible elementwcomprising two members longitudinally movablerelatively, to each other and having sliding frictional engagement with each other and means to vary said friction upon the relativerotation' of said members.

7. In an extensible member, an outer tube portion, an inner portion within said tube and frictionallyheld against sliding move ment therein, and means for varying said friction by the relative rotation of said inner and outer portions. 1

8. In a device of the class described, two

telescoping members, means withinthe outer member cooperating with the inner of outer tube portion, an inner member slidable in said tube portion, a second member within said tube portion, cooperating means on said inner member and said second member for expanding one of said members yieldingly to hold the same against longitudinal movement in said tube portion, and means to hold said second member against rotative movement in said tube portion. 7

11. An extensible member, comprising an outer tube portion, an inner member slidable in said tube portion, a second member Within said tube port-ion, cooperating means on said nner member and'said second member for expanding one of said members yield? ingly to hold" the same against longitudinal movement in' said tube portion, said means becoming operative upon the relative rotation of said tube portion and said inner member. i

In witness whereof, I have hereunto set 

